Stuck on this error, please help.

Hi, I'm fairly new to Java, and I am getting this error on this library program I'm working on.
"Can't make a static reference to nonstatic variable `Collection' in class `library'."
Mainly, I would just like to find out what the error means by "make a static reference to a nonstatic variable", if you need more info, just tell me and I'll post it up.
Thanks in advance.

you can't access a non-static variable in a static method...for example...
private int time;
public int getTime() //this is legal
     return time;
public static int whatIsTheTime() //this is not legal
     return time;
[\code]

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<Email Edited by Host>

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Hi All
We are Upgrading OMS from 11.1 to 12c
stuck at this error after invoking runInstaller
Following 1 system upgrade. (graphical mode).
INFO: Start output from spawned process:
INFO: ----------------------------------
INFO:
INFO: /opt/app/wls/oms12c/oms/bin/genclntsh
INFO: make: execvp: /opt/app/wls/oms12c/oms/bin/genclntsh: Permission denied
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INFO: End output from spawned process.
INFO: ----------------------------------
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Click "Retry" to try again.
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Please Advise
Edited by: TechAdmin on Aug 2, 2012 4:09 PM
Edited by: TechAdmin on Aug 2, 2012 4:11 PM

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INFO: oracle.sysman.top.oms:Failure...
INFO: oracle.sysman.top.oms:exiting the thread...
INFO: oracle.sysman.top.oms:[Initializing the EM RCU Runner, Failed Parameter Validation]
INFO: oracle.sysman.top.oms: action logger path calculated finally: /opt/app/wls/OMS12c/oms/sysman/log/schemamanager/m_073012_1147_AM/m_073012_1147_AM.TRANSX/
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INFO: oracle.sysman.top.oms:process_id:dr40kpyuxcpe
INFO: oracle.sysman.top.oms:Failure...
INFO: oracle.sysman.top.oms:1 error(s) happened in performing the action:
INFO: oracle.sysman.top.oms:1):
ORA-12003: materialized view "SYSMAN"."MGMT_ECM_MD_ALL_TBL_COLUMNS" does not exist
File:/opt/app/wls/OMS12c/oms/sysman/admin/emdrep/sql/core/11.2.0.1/ecm/ecm_tables_alter.sql
Statement:DROP MATERIALIZED VIEW MGMT_ECM_MD_ALL_TBL_COLUMNS
INFO: oracle.sysman.top.oms:The plug-in Repository Upgrade has failed its perform method
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2012-08-06 12:07:54,476 [t970bytvwebs] INFO emschema.t970bytvwebs - index on mgmt_messages found: true on try: 196
2012-08-06 12:08:00,479 [t970bytvwebs] INFO emschema.t970bytvwebs - index on mgmt_messages found: true on try: 197
2012-08-06 12:08:06,570 [t970bytvwebs] INFO emschema.t970bytvwebs - repos connection is not null, using old one
2012-08-06 12:08:06,571 [t970bytvwebs] INFO emschema.t970bytvwebs - executing: SELECT count(*) FROM all_objects WHERE object_name='MGMT_MESSAGES_IDX_01' AND owner='SYSMAN'
2012-08-06 12:08:06,572 [t970bytvwebs] INFO emschema.t970bytvwebs - index on mgmt_messages found: true on try: 198
2012-08-06 12:08:12,574 [t970bytvwebs] INFO emschema.t970bytvwebs - index on mgmt_messages found: true on try: 199
2012-08-06 12:08:18,576 [t970bytvwebs] INFO emschema.t970bytvwebs - not found index on mgmt_messages
2012-08-06 12:08:18,576 [t970bytvwebs] INFO emschema.t970bytvwebs - error: not found index on mgmt_messages for transx repos user exists: true mgmt_messages exists: true; index on mgmt_messages exist: false; found connection for repos user: true
2012-08-06 12:08:18,576 [t970bytvwebs] ERROR emschema.t970bytvwebs - Failed Parameter Validation
2012-08-06 12:08:18,576 [t970bytvwebs] ERROR emschema.t970bytvwebs - NULL Exception was thrown!
2012-08-06 12:08:18,576 [t970bytvwebs] ERROR emschema.t970bytvwebs - Failed Parameter Validation
we never had that index in our database.so that we could go back and check if that exits
Please suggest a solution for this.
Thanks
Unfortunately we dont have any other database to compare it to see wether it exits
Edited by: TechAdmin on Aug 6, 2012 11:34 AM

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